参数资料
型号: MAX9853ETM+
厂商: Maxim Integrated Products
文件页数: 47/71页
文件大小: 0K
描述: IC CODEC AUDIO STEREO 48TQFN
标准包装: 43
类型: 立体声音频
数据接口: 串行
分辨率(位): 18 b
ADC / DAC 数量: 2 / 2
三角积分调变:
S/N 比,标准 ADC / DAC (db): 81.5 / 88
动态范围,标准 ADC / DAC (db): 82 / 87.5
电压 - 电源,模拟: 2.6 V ~ 3.3 V
电压 - 电源,数字: 1.7 V ~ 3.3 V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 48-WFQFN 裸露焊盘
供应商设备封装: 48-TQFN-EP(7x7)
包装: 管件
MAX9851/MAX9853
Stereo Audio CODECs with Microphone, DirectDrive
Headphones, Speaker Amplifiers, or Line Outputs
______________________________________________________________________________________
51
Table 21 shows the possible mixing configurations of
the analog audio output mixer. The sidetone, line 1, and
line 2 signals can be routed to either the left or right
audio output in the combinations shown in Table 21.
The left DAC output is only available on the left audio
output and similarly for the right DAC output.
Table 21. Analog Output Mixer
INPUT SOURCE
MXOUTL
LEFT AUDIO OUTPUT
(REGISTER 0x0B,
BITS B7–B4)
MXOUTR
RIGHT AUDIO OUTPUT
(REGISTER 0x0B,
BITS B3–B0)
DESCRIPTION
Sidetone
1XXX
Mix the sidetone
Line 1
X1XX
Mix line input 1
Line 2
XX1X
Mix line input 1
Left DAC Output
XXX1
XXXX
Mix the left DAC output to the left analog
output
Right DAC Output
XXXX
XXX1
Mix the right DAC output to the right analog
output
Left and Right Audio Output Mixer (MXOUTL/MXOUTR)
Table 22. Digital Audio Input Gain Bit Descriptions
REG
B7
B6
B5
B4
B3
B2
B1
B0
0x0C
PGADS1
0x0D
PGADS2
Audio Gain Control Registers (0x0C, 0x0D, 0x0E, 0x0F, 0x10, 0x11)
Table 23. Digital Audio Input Gain Settings
PGADS1/
PGADS2
SETTING (dB)
0x00
0
0x0E
-1
0x1C
-2
0x29
-3
0x35
-4
0x40
-5
0x4A
-6
0x55
-7
0x5E
-8
0x67
-9
0x70
-10
0x78
-11
0x7F
-12
0x86
-13
PGADS1/
PGADS2
SETTING (dB)
0x8D
-14
0x93
-15
0x99
-16
0x9F
-17
0xA5
-18
0xAA
-19
0xAE
-20
0xB3
-21
0xB7
-22
0xBB
-23
0xBF
-24
0xC2
-25
0xC6
-26
0xC9
-27
PGADS1/
PGADS2
SETTING (dB)
0xCC
-28
0xCF
-29
0xD2
-30
0xD4
-31
0xD6
-32
0xD9
-33
0xDB
-34
0xDD
-35
0xDF
-36
0xE1
-37
0xE2
-38
0xE4
-39
0xE5
-40
0xFF
Mute
Programmable-Gain Adjustment for Digital Audio
Inputs (PGADS1/PGADS2)
PGADS1/PGADS2 configures the gain adjustment for the
digital audio interface inputs. Code 0x00 is full signal
while 0xFF is full attenuation. This programmable-gain
adjustment follows the mono mixers. Table 23 shows
simplified gain control settings for digital signal inputs.
X = Don’t care.
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MAX9851ETM+ IC CODEC AUDIO STEREO 48TQFN-EP
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